Draft-rigging for railway-cars.



J. F. OCONNOR.- DRAFT meeme FOR RAILWAY ems,

APPLICATION FILED APR. '11, m4.

Patented. Apr. 20; 1915.

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- INVENTOR. 0 701 Jan/Mr BY %1 AJTTORNEY WITNESSES onrrnio star :1

JOHN F. OCONNOR, OF CHICAGO, ILLIhTOIS, ASSIGNOR TO 'WILLIAM H. MINER, OF

' CHICAGO, ILLINOIS. 1

DRAFT-RIGGING FOR RAILWAY- CARS.

riaaesa.

Specification of letters Patent.

Patented Apr. 20, 1915.

Application filed. April 11, 1914. Serial No. 831,285.

To all whom it may concern:

Be it known that 1, JOHN F. OCoNnoR, a citizen of the United States, residing at Chicago, in the county of Cook and State of Illinois, have invented a certain new and useful Improvement in Draft-Rigging for Railway-Cars, of which the following is a full, clear,'concise, and exact description, reference being had to the accompanying drawings, forming a part of this specification.

My invention relates to draft rigging for railway cars.

The object of my invention is, to provide a draft rigging of efficient operation.

In the drawings forming a part of this specification Figure 1 is a side elevation, partly in vertical longitudinal section, of a draft rigging embodying-my invention, and showing the parts in normal position; Fig. 2 is a plan view partly in horizontal section on line 2-2 of Fig. 1, and showing the spring elements compressed in draft; Fig. 3 is a plan view, partly in horizontal section, showing the position. of the parts when in full buff; Fig. & is a cross section taken on line a e of Fig. 1; Fig. 5 is a rear end View of the shell; Fig. 6 is a detail view illustrating the rear follower; Fig. 7 illustrates a modification.

Referring to the drawings, the numerals 8- 8 indicate draft members or parts of the car-frame to which the draft rigging is applied la draw-bar, only the rear end thereof being shown in the drawings; 10 a draftyoke slidably keyed to the draw-bar, preferably comprising a U-shaped yoke-strap 11 provided at its free ends with a hollow boxlike member 12 having lateral slots 13 to receive the coupler-key let. The coupler-kcy extends through the draw-bar and said slots, and through slots 15 provided in adjacent portions of the draft members. The slots 15 are longitudinally extended to permit reciprocating movement of the key therein.

The slots 13 of theyoke are rearwardly eX- tended to permit the rearward movement of the draw-bar without buffing strain upon the key 1 1-. A. draft-gear 16-is mounted between the draft members. the draft-gear comprising a shell 17 open at both ends, and prefer ably being a hollow cylinderin form. Friction elements 18 and spring elements 19 are mounted within .the shell, the friction elements preferably comprising a plurality of friction shoes 20, a wedge 21, and anti-friction rollers 22 interposed between each friction shoe and the adjacent wedging faces of the wedge. The spring elements preferably comprise an outer spring 23 and an inner spring 2-1 nested therein, the said springs being seated-at their forward ends against the friction elements. Rearwardly the spring elements are seated against a follower 25. At its rear end the shell is provided with a preferably vertical slot or recess adapted to permit the reciprocating movement of the rear follower 2-5 therein, and adapted to per mit the entry therein ofthe vertical fillerblock 26 with which the yoke is provided at its rear end. The rear follower 25 is adapted to enter the rear portion of the shell, and is provided with upwardly and downwardly extending. flanges 27 adapted to engage against the rear shoulders 28 with which the shell is provided tolimit the inward movement of the follower in the shell. In preferable construction, the rear follower is provided with transverse slots 2929, each adapted for the passage of a supporting bar or rivet 30, each supporting member 30 ,being secured at its ends in the shell. A connecting rod 32 connects the friction elements with the rear follower and limits the separating movement of the same, the head 33 of the said rod being received in a recess 34 of the wedge, and the nut 35 thereof being received in a recess 36 in the rear face of the rear follower 25. A tie-plate 37 secured to the draft member is adapted to support the draft-gear. Stop-members 3838 are secured to the inner faces of the draft-memhers, the stop-members being provided with front stop-shoulders 39, front limiting stopshoulders 40, rear stop shoulders l141, and shoulders 42-42 in front of the rear stop-shoulders 41', forming a space 43.43 in either stop-member, the said spaces being adapted to receive the outwardly projecting shoulders 4444 with which the shell is laterally provided at its rear end, the said shoulders being preferably integral with the shell, and being preferably arranged at either side of the vertical recess in the rear end of the shell. I The front follower is in-' dicated by the numeral 46, the same being in engagement with, the friction elements within the shell and performing its usual function. It will be observed that the shell -is rigidly mounted between the draft mem- -bers,'that is, the same is secured therein against longitudinal movement.-

On-rearward' movement of the draw-bar, the same forces the front follower rearwardly, bringing the friction elements within the shell into resistin action, the inward movement of the riction elements being resisted b the spring elements, the spring elements being stopped against rear-'- ward movement bythe rear follower, the

rear"; follower being held against rearward members .en-.

movement by the transverse gaging against the forward ends of the slots 29 through the rear follower, and the shell being stopped against rearward movement through engagement of the lateral shoulders thereof within the recesses 43 in the stop members. Thus in rearward movement of the draw-bar, both the friction elements and spring elements of the draftgear are brought into compression resisting action.

On forward movement ofthe draw-bar, the .yoke is drawn forwardly, the rear end of the yoke operating in the vertical recess of the rear end of the shell and drawing the rear follower forwardly, compressing the spring elements against the friction eleand the spring f 'ders 66-66, 45

ments, the friction elements being stopped by the front follower, which in turn is held against forward movement by the front stop-shoulders 39. In forward movement of th'edraw-bar, the shell is also stationary,

' and the friction elements are not brought into frictional resisting action.

In the modification illustrated in Fig. 7 of the drawings, the numerals--60 indicate draft members or parts of the car-frame to which the draft rigging is applied; 61 the drawbar, only the rear end thereof being shown; 62 the draft-yoke connectedto the draw-bar; 64 the front follower; 65- 65' stop members having front stop-shoulfront limiting stop-shoulders 6767, rear stop-shoulders 68-68, and rear limiting stop-shoulders 69-69. The draftgear 70 comprises the shell 71, open at both ends, containing the frictional elements 72 elements 7 3, the spring elements being seated at their forward ends against the friction .rearwardly seated against the rear follower 7 4. The rearfollower and friction elements arelimited in their separating movement by the connecting bolt 75 engaging the wedge '76 at one end and the rear follower 74 at the other end. At its rear end the slnell is provided with a vertical recess 77 adapted to permit the entry of the rear end 78 of the draft-yoke 62, the rear follower being mounted upon transverse members 79 extending through slots 80 in said rear follower, the said slots 80 being longitudinally extended to permit the forward movement of the follower upon the said transverse the'structure illustrated in Fig.

elements, and being )provided with a recess for the member 79. At its rear end the shell is provided with laterally extended shoulders 7 81-81, which are preferably integral with the shell and are adapted to enter the space in the stop members" between the rear stopshoulders 68 and the rear limiting stopshoulders 69; In this modification, a referably slight longitudinal movement ,0 v

the shell is provided for in that the said shoulders 81 are of lesser length than the length of the slots in the stop inembersin which they are received. This longitudinal movement of the shell is the difference in structure between the referred embodiment of my invention as ifiustrated in Figs. l'to 6, inclusive, of the drawin s, and the modification shown in Fi 7% hn 'o t e provision for slight drawings, on rearward movement of the Q draw-bar, the front follower 64 isforced rearwardly, its rearward movement being resisted by 'thevaction of the friction elements and spring elements within the shell, the springs being held against rearward movement by the transverse member 79 passing through the rear follower and the shell, and the shell being held against rearward movement through its engagement agains the rear stop-shoulders 68.

On-forward movement of the draw-bar, the rear follower is drawn forwardly by the yoke, the rear end of which operates in the vertical recess rearwardly provided in the shell, compre'ssingthe springs against the friction elements until the rear follower engages the rear end of the -shell, whereupon the shell is drawn forwardly until the shoul-. ders at the rear end thereof engage the rear sis limiting stop-shoulders 69, the friction ele-' ments withinthe shell being in frictional action with the shell during the forward movement thereof. Thus on forward movement of the draw-bar, the initial compression-resisting elements spring elements, and near the end of the forward movement, both the spring elements and friction elements are in compression resisting action.

' I claim 1. In a draft rigging for railway cars, in combination, draft members, a shell secured against longitudinal movement between the draft members, friction elements and spring elements within the shell, a rear follower engaging the compression resisting elements within the shell, the shell being'rearwardly entry of the draft yoke on forward movement thereof, the draft yoke being'in engagement with the rear follower.

2. In a draft rigging for railway cars, in combination, 'draft members, a draw-bar, a yoke connected to the draw-bar,-a shell open at both erids and secured against longitudinal movementbetwcen the draft members,

employed are the I 7 draft yoke, v w

' .o'n forward movemen compressinigthe spring elements against the 20 f ment of said friction elements, said follower serving as an abutment compression resisting elements within. the

shell, a rear follower adaptedto enter the shell and to be engaged by the draft yoke, theshell being rearwardlyprovided with a recess to receive the end of the draft yoke in its forward movement.

3. In a draft rigging for railway cars, in combination, draft members, a draw-bar, a a shell openat its ends, friction velements and spring elements within the shell, a follower engaging the spring ele-- d ments and slidingly operating in the shell,

stop members, theshell being provided with shoulders, and the stop members being provided with. slots to receive said shoulders to ment the draft yoke en a g the fhllower t ogti e draw-bar, and riction elements; wit out frictional movefor the spring elerecelve said against longitudinal movement, one of the ments upon rearward movement of the drawbar'whereby both the friction elements and thespring elements are brought into play upon rearward movement of the draw-bar.

4. In a draft rigging for railway cars, in combination, draft members, draw-bar, a

yoke secured thereto, a shell, friction elements and spring elements within the shell, stop members and followers, the shell being provided with outwardly extended shoulers, the stopm'embers 'having'recesses to shouldersto secure the shell followers entering one end. of the shell and engaging the spring elements, the said fol hold the shell against longitudinal movee lower being Erovided with means passing through the s ment of said follower.

ell to limit the outward move- JOHN F. OCONNOR. Witnesses: a

[ ELTZABETH Bnrrr, CARRIE G. Ram. 

